GM3120 electromagnetic radiation meter electromagnetic radiation meter radiation detectorInstructions1. Press and hold the power button to turn it on. After the full screen is displayed, the current electric field and magnetic field values can be displayed. Short press the power button to turn on the backlight, the screen will display the "" symbol, short press again to turn off the backlight. Without any key operation, the backlight will turn off after 30 seconds. Then long press the power switch to shut down. The meter will shut down after 5 minutes without any key operation.Note: Due to the possible electromagnetic field interference in the environment, the instrument may have a small reading when it is turned on, which is not the case of the instrument.2. Hand-held the instrument, the front-end induction area is slowly approaching the electromagnetic radiation source to be measured. If the actual radiation value is within the instrument testing technical indicators, the instrument will display a numerical value: if the instrument has no reading, it means that the electromagnetic radiation value of the radiation source is less than that of the machine. The minimum reading is 1V/m or 0.01uT. Note: For high-voltage facilities, long-distance measurement is enough, remember to pay attention to safety3. During the measurement, press the HOLD key, the instrument reading will be locked, and the screen will display the "HOLD" symbol. If the lock is not required, press the HOLD key again. By default, the beep is turned on, and the screenThe "horn" symbol is displayed on the screen, long press the BEEP button to switch the buzzer on and off4. Press the AVG / VPP key to switch between the average value and the peak value in turn when the measurement is not locked5. When the number display is unclear or the number flashes and cannot be reset to zero, it indicates that the battery is insufficient, please replace the battery in timeFunctional characteristicsThis electromagnetic radiation tester has the following features:One machine for two purposes, simultaneous detection of electric field and magnetic field radiationSound and light alarm, automatic alarm when the safety value is exceededData lock, one-key lock radiation valueLCD graphic display of radiation value trends:Radiation assessment, intimate reminder whether the current radiation value is safeStylish appearance and easy one-handed operation for mobile or field measurementsScope of applicationElectromagnetic radiation monitoring: home, office, outdoor, industrial places.Electromagnetic radiation detection: mobile phone, computer, TV, refrigerator, high-voltage line radiation detection: radiation protection equipment inspection: radiation protection clothing, radiation protection film and other protective equipment effect inspection.Radiation Indexradiation index: Hair dryer radiation index: Electric blanket shooting index: Microwave Radiation Index: Computer monitor and host radiation index: Mobile phone radiation index: TV radiation index: Keyboard and mouse radiation index: Radiation index of copiers and printers: Note: This product does not come with a battery, you need to bring your own 9V square battery